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Hello Everyone,
I'm successfully running LVS with TUN with servers in different networks and
different countries.
Everything is great since I can balance my load and keep all sites up all
the time and at the same time I hide my real servers ips so nobody attack
them. Thats great.
My question is: I'm successfully running LVS on http, ftp, dns and nearly
everything. Now when I tried to do the same to smpt protocol, I got a
surprise. On the same server I have LVS with TUN running just fine for both
http and dns, and I do the same for smtp (port 25), my real server ip
appears on all messages, revealing the real server ip, so this is a
potential brench for an attacker.
Anyone knows if its some kind of problem within my config or its just usual?
Thanks,
Viperman
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